Delphia



E; B., J. s.- & -w. s. CLARK.

Y Steam Heater.`

No. 69,542. j y PatentdAOct'. 8, 1867.

uiten tetra stmt @fitta n'nwAaniB. CLAaIe JosIAn s. CLARK, Aun4 WILLIAMs. CLARK, or rnILA` f DELP-BIA, 'rnNNsYLvANIA Letters Patent No. 69,542,dated October 8, 1,367.

IMPROVEMENT IN STEAM-BEATLES.

TO `AL L WHOM IT MAY CONCERN:

Be it known that we, EDWARD B. CLARK, JosIAn S. CLARK, and WILLIAM S.CLARK, all of the city and county of Philadelphia, in the State ofPennsylvania, have invented certain new and useful Improvements inSteam-Heating Apparatus, ofwhich the following is a full, clear, andexact description, reference being had to the accompanying drawing,which makes part of this specification, and which represents avertical'section through our improved heating apparatus, as applied toan ordinary chamber-stove.

-It is the object of our invention to combine with an ordinary stove orwith a range a steam-heating apparatus, so that -while deriving therequisite heat from the stove or range in the room in which it is placedwe may utilize the same heat by making it generate steam, which isconducted to any other part of the building where it-may be required. Tothese ends our invention consists inarranging a coil of steam pipesWithin the fIrechamber of a stove,l range,por furnace, and connectingthem `directly with the water-supplg1 in such a manner as to generatesteam without the use ot' a boiler, and to conduct the steam thusgenerated through suitable pipes to the apartment to be warmed by it; anautomatic stop-valve being so arranged'in the water-supply pipe as tokeep the water at a uniform height in the fire-chamber, to prevent theburning of the pipes, and yet to supply water as fast Vas it is'vaporited Our invention further consiste in a novel arrangement of thepipes in the tirecharnber. 4Our invention further consists in a novelmethod of balancing the steam pressure on the supplyv valve so as'toleave its motions uncontrolled .save by the pressure of the supplywater.

-To carry out the objects of our invention, we convey the water from astreet main, hydrant, or fronr'a tank, A, (situated in any convenientlocation,) through a feed pipe, B, into a water-drum, C, provided with afloatvalve, D, which prevents the water from rising above the properwater. line d. A water pipe, E, leads from the bottom of the drum C intoan ordinary cylinder-stove, E', to the upper portion of which it ascendsin a spiral coil, F. It is then bent down within the coil into a Ushape, and up again to the top of the stove, (to increase the surfaceexposed to heat,) whence it leads ofll to a coil of pipes, G, whichv maybev situated in the same room with the stove, or may be in anotherapartment, orin any place where it is desired. The exit pipe H isprovided Vwith an escape pipo, J, in which is a safety-valve, I, leadingintov the'stove pipe K to prevent the pressure from vbecomingdangerously high. A pressure pipe, L, likewise leads from the upper partof .the water-drum Cl to the coil F, thus balancing the pressure on thcfloat-valve D, and enabling it to risc and fall freely with every changeof the water level.

'The operation of this apparatus is. very simple, and it can be adaptedto the ordinary stoves and rangos usod in every building at small cost.The fuel required to heat a room or to cook a meal will suiiice also togenerate steam enough to warm another room, and the regulation of thesupply of Water by the quantity of steam used secures the utmost economyin every respect. It requires no attention beyond that involved inkeeping up an ordinary tire. It is manifest .that this apparatus can beused for heating several rooms or an entire building without any otherchange than an increase in the quantity of fuel used, and the consequentmore rapid generation of steam.' The direct :application of the heat tothe pipes, by passing the pipes through the iirc and-generating thesteam within the stove itself, renders this apparatus so compact that itcan be placed in any room without obstructing the ordinary uses of theapartment, or occupying any space that thc stove itself wouldnot requireor render unavailable for other purposes, as the drum and connectionscould be placed between the stove and the wall, directly under the stovepipe.

What wo claim as ourinvention, and desire to secure by Letters Patent,is 1. The combination, substantially in the manner described, with anordinary stove for warming buildings, of' a Coil of steam pipes providedwith an automatic feed-valve which supplies water as fast as evaporated,thus maintaining the water at a uniform level, preventing the burning ofthe pipe, and dispensing with an external steam-drum. y

2. The combination, substantially as described, ofthe water-drum andiloat-valve,'with the heatingcoil and balancing pressure pipes, for thepurpose of preventing pressure on the valve.

In testimony whereof we have hereunto subscribed our names.

' EDW. B. CLARK,

JOSIAH S. CLARK,

Witnesses: WILLIAM S. CLARK.

WM. B. DAYITCN,

" HENRY BALDWIN,

